汉语俗语 “说曹操，曹操就到” 用来描述 “正当谈论某个人的时候，那个人就出现了” 的情景。英语表达 “talk of the devil 谈论魔鬼” 也能谈论同样的情况。人们有时会把 “talk of the devil” 中的动词 “talk” 替换成 “speak”，即 “speak of the devil”，意思不变。

例句

Talk of the devil; we were just talking about you.

说曹操，曹操就到！我们正说你呢。

I can't believe Tom's leaving!  Speak of the devil, here comes Tom.

真不敢相信汤姆要走了！说他，他就到了。汤姆来了。

Kun broke up from his girlfriend – talk of the devil. Here she is!  Have you been standing there for a long time?

琨和他女朋友分手了。说曹操，曹操就到。她在这里！你在这儿站很长时间了吗？